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CVE-2020-6794

MEDIUM
6.5
CVSS Score
Published: March 2, 2020 at 04:05 AM UTC
Updated: June 17, 2026 at 03:23 AM UTC
2 products affected across 2 vendorsUbuntu LinuxThunderbird

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Severity
MEDIUM6.5
Exploit prediction
EPSS 1%

Description

If a user saved passwords before Thunderbird 60 and then later set a master password, an unencrypted copy of these passwords is still accessible. This is because the older stored password file was not deleted when the data was copied to a new format starting in Thunderbird 60. The new master password is added only on the new file. This could allow the exposure of stored password data outside of user expectations. This vulnerability affects Thunderbird < 68.5.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Ubuntu Linux· Canonicalrubygems
95%
16.0418.0419.10
Thunderbird· Mozilla
95%
v < 68.5v < 68.5.0
Affected range stops below 68.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 68.5.0, so it looks safe — our inference, not a vendor statement

References (5)

x_refsource_MISCExploitIssue TrackingPatchVendor Advisory
Source: [email protected]
https://bugzilla.mozilla.org/show_bug.cgi?id=1606619
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202003-10
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/4328-1/
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/4335-1/
x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2020-07/

CVSS

6.5MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-312CWE-459CWE-522

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